123103033022228 has 18 divisors (see below), whose sum is σ = 250602602938506. Its totient is φ = 52758442723728.

The previous prime is 123103033022227. The next prime is 123103033022251. The reversal of 123103033022228 is 822220330301321.

It can be written as a sum of positive squares in only one way, i.e., 79796130705424 + 43306902316804 = 8932868^2 + 6580798^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123103033022194 and 123103033022203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123103033022227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 314038349351 + ... + 314038349742.

It is an arithmetic number, because the mean of its divisors is an integer number (13922366829917).

Almost surely, 2^{123103033022228} is an apocalyptic number.

It is an amenable number.

123103033022228 is an abundant number, since it is smaller than the sum of its proper divisors (127499569916278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123103033022228 is a wasteful number, since it uses less digits than its factorization.

123103033022228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628076699111 (or 628076699102 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 123103033022228 its reverse (822220330301321), we get a palindrome (945323363323549).

The spelling of 123103033022228 in words is "one hundred twenty-three trillion, one hundred three billion, thirty-three million, twenty-two thousand, two hundred twenty-eight".